JP2001086378A - Image pickup element and endoscope using image pickup element - Google Patents
Image pickup element and endoscope using image pickup elementInfo
- Publication number
- JP2001086378A JP2001086378A JP26381299A JP26381299A JP2001086378A JP 2001086378 A JP2001086378 A JP 2001086378A JP 26381299 A JP26381299 A JP 26381299A JP 26381299 A JP26381299 A JP 26381299A JP 2001086378 A JP2001086378 A JP 2001086378A
- Authority
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- Japan
- Prior art keywords
- pixel area
- image pickup
- endoscope
- pickup element
- effective pixel
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、撮像素子及び撮像
素子を用いた内視鏡に関し、さらには、内視鏡撮像装置
の組立方法に関するものである。The present invention relates to an image pickup device and an endoscope using the image pickup device, and more particularly, to an assembling method of an endoscope image pickup apparatus.
【０００２】[0002]
【従来の技術】デジタルカメラや電子内視鏡等に使用さ
れる撮像素子を用いた撮像装置において、画像の中心が
正面ではなく斜め前方を向いてしまう軸ずれ、ズーム時
の画像の横ずれ、広角レンズの周辺のケラレを抑えるた
めに、実際に画像を形成、出力することができる撮像素
子の有効画素領域の中心と対物光学系の光軸を一致させ
るのは必要不可欠である。従来は、測定顕微鏡等で実際
に有効画素領域を測定して中心を求め、その中心と光学
部材の光軸を一致させるように位置出しを行っていた。2. Description of the Related Art In an image pickup apparatus using an image pickup device used in a digital camera, an electronic endoscope, or the like, an axis shift in which the center of an image is directed obliquely forward rather than in front, a lateral shift of an image during zooming, and a wide angle In order to suppress the vignetting around the lens, it is essential that the center of the effective pixel area of the image sensor capable of actually forming and outputting an image coincide with the optical axis of the objective optical system. Conventionally, the effective pixel area was actually measured with a measuring microscope or the like to determine the center, and the position was determined so that the center and the optical axis of the optical member coincided.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、実際に
測定して位置出しを行うのは効率が悪く時間がかかり、
コストアップにつながる。また、作業時も測定顕微鏡で
撮像素子全面を観察する必要があり、観察倍率を上げる
ことができないために、位置出しの精度もよくなかっ
た。撮像素子によっては、画素領域と有効画素領域の境
界線も鮮明でなく、測定の際に境界を判別できずに組立
ミスが起こってしまうことがあった。However, it is inefficient and time-consuming to actually perform measurement and position determination.
This leads to higher costs. In addition, it is necessary to observe the entire surface of the image sensor with a measuring microscope during the operation, and the observation magnification cannot be increased. In some image sensors, the boundary between the pixel area and the effective pixel area is not clear, and the boundary cannot be determined at the time of measurement, which may cause an assembly error.
【０００４】また、撮像素子とレンズ作用を有する光学
部材を位置出し固定するときは、光学部材の縁で有効画
素領域がケラレてしまい観察できないことがあり、位置
出しすることができなかった。Further, when the image pickup device and the optical member having a lens function are positioned and fixed, the effective pixel area may be vignetted at the edge of the optical member and may not be observed.
【０００５】図８に、撮像素子と凸レンズの位置出しす
る際の概念図を示す。撮像素子１４には画素領域２と有
効画素領域３があり、その上に凸レンズ１２を固定す
る。しかし、測定顕微鏡を用いて位置出し固定しようと
すると、凸レンズ１２の屈折作用により測定顕微鏡対物
レンズ１１で観察できるのは光線１３ａよりも内側の範
囲となり、それ以上の光線は凸レンズ１２の縁でケラレ
てしまい観察することができない。光線１３ａ以上の範
囲を観察するためには、光線１３ｂのように凸レンズ１
２の入射面の延長線１２ａの部分を通過しなければなら
ない。観察をできるように凸レンズ１２を大きくしてし
まうと、撮像装置が大きくなり、好ましくない。特に、
内視鏡のような小型化が望まれる製品にとっては致命的
である。FIG. 8 shows a conceptual diagram when positioning the image pickup device and the convex lens. The image sensor 14 has a pixel area 2 and an effective pixel area 3, on which the convex lens 12 is fixed. However, when trying to locate and fix the position using the measuring microscope, the refraction of the convex lens 12 allows the measurement microscope objective lens 11 to observe the area inside the light beam 13a. It cannot be observed. In order to observe the range over the light beam 13a, the convex lens 1
2 must pass through a portion of the extension 12a of the entrance surface. If the convex lens 12 is enlarged so as to enable observation, the size of the image pickup device becomes large, which is not preferable. In particular,
This is fatal for products that require miniaturization, such as endoscopes.
【０００６】撮像素子と鏡枠を位置出し固定するとき
も、鏡枠の縁で有効画素領域がケラレてしまい、観察で
きないことがあり、位置出しすることができなかった。
図９に、撮像素子と鏡枠の位置出しをする際の概念図を
示す。撮像素子１４には画素領域２と有効画素領域３が
あり、その撮像素子１４を鏡枠１６に固定する。鏡枠１
６には、その前方に配置される光学部材を固定するため
の光学部材固定部１７が設けられている。測定顕微鏡を
用いて撮像素子１４と鏡枠１６の位置出し固定をしよう
とすると、測定顕微鏡対物レンズ１１で観察できるのは
光線１５ａよりも内側の範囲となり、それ以上の光線は
光線１５ｂのように光学部材固定部１７の内側の縁でケ
ラレてしまい、観察することができない。観察できるよ
うにしようとすると、光学部材固定部１７の内径を大き
くする必要があり、その前方に配置される光学部材も大
きくなるので、好ましくない。特に、内視鏡のような小
型化が望まれる製品にとっては致命的である。When the image pickup device and the lens frame are positioned and fixed, the effective pixel area is vignetted at the edge of the lens frame, which sometimes makes it impossible to observe and cannot be positioned.
FIG. 9 shows a conceptual diagram when positioning the imaging device and the lens frame. The image sensor 14 has a pixel area 2 and an effective pixel area 3, and the image sensor 14 is fixed to a lens frame 16. Mirror frame 1
The optical member 6 is provided with an optical member fixing portion 17 for fixing an optical member disposed in front thereof. When it is attempted to position and fix the imaging device 14 and the lens frame 16 using a measuring microscope, what can be observed with the measuring microscope objective lens 11 is a range inside the light beam 15a, and the light beams beyond that can be observed like the light beam 15b. Vignetting occurs at the inner edge of the optical member fixing portion 17 and cannot be observed. In order to enable observation, it is necessary to increase the inner diameter of the optical member fixing portion 17 and the optical member disposed in front of the optical member fixing portion 17 is also undesirably large. In particular, it is fatal for products that require miniaturization, such as endoscopes.
【０００７】本発明は従来技術のこのような問題点に鑑
みてなされたものであり、その目的は、撮像素子を位置
出し固定する内視鏡等の撮像装置を大きくすることな
く、撮像素子と光学部材との位置出し精度、効率を向上
させた撮像素子を提供することである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to reduce the size of an image pickup device such as an endoscope for positioning and fixing the image pickup device without increasing the size of the image pickup device. An object of the present invention is to provide an image pickup device with improved positioning accuracy and efficiency with respect to an optical member.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成する本発
明の撮像素子は、画素領域又は実際に画像を形成出力す
るのに使用される有効画素領域の位置を示す指標が、画
素領域周辺近傍に配置されていることを特徴とするもの
である。According to the present invention, there is provided an image pickup device, wherein an index indicating a position of a pixel area or an effective pixel area used for actually forming and outputting an image is provided in the vicinity of the pixel area. Is characterized by being arranged in a.
【０００９】本発明は、そのような撮像素子を使用した
内視鏡を含むものである。The present invention includes an endoscope using such an image sensor.
【００１０】また、本発明の内視鏡撮像装置組立方法
は、撮像素子の撮像領域周辺近傍に配置された指標と、
光学部材又は対物光学系の光軸と略一致した軸を有する
部材との位置関係を求めて、位置出し固定することを特
徴とする方法である。Further, the method for assembling an endoscope imaging apparatus according to the present invention includes the steps of:
This method is characterized in that a positional relationship with an optical member or a member having an axis substantially coincident with the optical axis of the objective optical system is determined, and the position is fixed.
【００１１】本発明においては、画素領域又は実際に画
像を形成出力するのに使用される有効画素領域の位置を
示す指標が、画素領域周辺近傍に配置されているので、
光学部材との位置出し精度、効率を向上させることがで
き、従来の方法では撮像装置を大きくしなければ位置出
しができなかった光学部材や鏡枠との位置出しをするこ
とが可能になる。In the present invention, since the index indicating the position of the pixel area or the effective pixel area used for actually forming and outputting an image is arranged near the periphery of the pixel area,
Accuracy and efficiency of positioning with an optical member can be improved, and positioning with an optical member or a lens frame which could not be positioned without increasing the size of the imaging device in the conventional method can be performed.
【００１２】[0012]
【発明の実施の形態】以下、本発明の撮像素子及び撮像
素子を用いた内視鏡の実施例について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an image pickup device and an endoscope using the image pickup device of the present invention will be described.
【００１３】（第１実施例）図１に、第１実施例のＣＣ
Ｄの簡略図を示す。ＣＣＤ１の撮像面中に画素領域２が
あり、その中に有効画素領域３がある。画素領域２の周
辺に指標４ａ、４ｂ、４ｃ、４ｄが配置されている。指
標４ａ、４ｂ、４ｃ、４ｄはそれぞれ有効画素領域の上
下方向、左右方向の中心に配置されており、縦方向、横
方向に並んだ指標を結んだ線の交点が有効画素領域の中
心になるように配置されているので、簡単に有効画素領
域の中心を求めることができる。(First Embodiment) FIG. 1 shows a CC of the first embodiment.
The simplified diagram of D is shown. There is a pixel area 2 on the imaging surface of the CCD 1 and an effective pixel area 3 therein. Indices 4a, 4b, 4c, and 4d are arranged around the pixel area 2. The indices 4a, 4b, 4c, and 4d are respectively arranged at the centers in the vertical and horizontal directions of the effective pixel area, and the intersection of the lines connecting the indices arranged in the vertical and horizontal directions becomes the center of the effective pixel area. With such arrangement, the center of the effective pixel area can be easily obtained.
【００１４】本実施例記載のＣＣＤを使用した製品で
は、有効画素領域３を測定して中心を求める必要がなく
なるので、組立効率を向上させ、コストダウンが図れ
る。In the product using the CCD described in this embodiment, there is no need to measure the effective pixel area 3 to find the center, so that the assembly efficiency can be improved and the cost can be reduced.
【００１５】図１の実施例では、指標４ａ〜４ｄは小円
であるが、指標の形状は、三角、十字、直線等どんな形
状でもよい。In the embodiment shown in FIG. 1, the indices 4a to 4d are small circles, but the indices may have any shape such as a triangle, a cross, and a straight line.
【００１６】（第２実施例）図２に、第２実施例のＣＣ
Ｄの簡略図を示す。ＣＣＤ１の撮像面中に画素領域２が
あり、その中に有効画素領域３がある。画素領域２の周
辺に指標５ａ、５ｂが配置されている。指標５ａは画素
領域２の上側周辺部に有効画素領域３の上辺中心より所
定の距離だけ右方向にずれて配置されており、指標５ｂ
は画素領域２の右側周辺部に有効画素領域３の右辺の中
心より所定の距離だけ上方向にずれて配置されている。
有効画素領域３の中心を求める際には、指標５ａ、５ｂ
の位置から左方向、下方向のそれぞれの所定の距離を換
算すればよい。(Second Embodiment) FIG. 2 shows the CC of the second embodiment.
The simplified diagram of D is shown. There is a pixel area 2 on the imaging surface of the CCD 1 and an effective pixel area 3 therein. Indices 5a and 5b are arranged around the pixel area 2. The index 5a is arranged at the upper peripheral portion of the pixel area 2 to be shifted rightward from the center of the upper side of the effective pixel area 3 by a predetermined distance.
Are arranged on the right peripheral portion of the pixel region 2 so as to be shifted upward by a predetermined distance from the center of the right side of the effective pixel region 3.
When determining the center of the effective pixel area 3, the indices 5a, 5b
The predetermined distances in the leftward and downward directions from the position may be converted.
【００１７】本実施例記載のＣＣＤは、画素領域２と有
効画素領域３の境界が鮮明でなく、光軸と有効画素領域
３の中心とがずれて位置出しされる組立ミスを起こしや
すかったが、このような指標５ａ、５ｂを配置すること
で、組立ミスを減らすことができる。また、全ての指標
５ａ、５ｂを撮像面の右上に配置したので、有効画素領
域３中心を求める際の測定顕微鏡での観察範囲は有効画
素領域３の右上方向の１／４の範囲が見えていれば十分
となったので、観察倍率を高くすることができる。その
結果、使用した製品の組立精度を向上させることがで
き、製品の性能向上、コストダウンが図れる。In the CCD described in this embodiment, the boundary between the pixel area 2 and the effective pixel area 3 is not clear, and an assembly error in which the optical axis is positioned off the center of the effective pixel area 3 is likely to occur. By arranging such indicators 5a and 5b, assembly errors can be reduced. Further, since all the indexes 5a and 5b are arranged at the upper right of the imaging surface, the observation range by the measuring microscope when obtaining the center of the effective pixel region 3 is a quarter of the upper right direction of the effective pixel region 3. Is sufficient, the observation magnification can be increased. As a result, the assembling accuracy of the used product can be improved, and the performance of the product can be improved and the cost can be reduced.
【００１８】このように、指標は特にそれぞれの辺の中
心近傍にある必要はなく、有効画素領域の中心との位置
関係だけが明確になっていればよい。As described above, the index does not need to be particularly near the center of each side, and only the positional relationship with the center of the effective pixel area needs to be clear.
【００１９】（第３実施例）図５に、第３実施例の内視
鏡用対物光学系の断面図を示す。図３に、第３実施例に
使用したＣＣＤ１の簡略図を示す。図４に、ＣＣＤ１と
内視鏡用対物光学系のレンズ７ｂの位置関係を示す簡略
図を示す。図３、図４に示す指標６ａ、６ｂは、有効画
素領域３の上辺、下辺の中心に配置されており、反射率
の低い酸化クロム−クロム−酸化クロム蒸着膜で形成さ
れている。図５に示す内視鏡用対物レンズは、凸レンズ
７ａ、７ｂの２枚で構成されており、像側に配置される
凸レンズ７ｂの像側面の平面にＣＣＤ１のカバーガラス
に接着され、凸レンズ７ｂの外径を基準にして凸レンズ
７ａが配置されている。(Third Embodiment) FIG. 5 is a sectional view of an endoscope objective optical system according to a third embodiment. FIG. 3 shows a simplified diagram of the CCD 1 used in the third embodiment. FIG. 4 is a simplified diagram showing the positional relationship between the CCD 1 and the lens 7b of the endoscope objective optical system. The indices 6a and 6b shown in FIGS. 3 and 4 are arranged at the centers of the upper side and the lower side of the effective pixel region 3, and are formed of a chromium oxide-chromium-chromium oxide vapor-deposited film having a low reflectance. The endoscope objective lens shown in FIG. 5 is composed of two convex lenses 7a and 7b, is adhered to the cover glass of the CCD 1 on the plane of the image side of the convex lens 7b arranged on the image side, and The convex lens 7a is arranged based on the outer diameter.
【００２０】従来の撮像素子では、凸レンズ７ｂを通し
て有効画素領域３を測定顕微鏡で測定しようとしても、
横方向の周辺がレンズ７ｂの縁でケラレてしまい観察す
ることができなかったので、位置出ししての接着ができ
なかった。In the conventional image sensor, even if the effective pixel area 3 is measured by the measuring microscope through the convex lens 7b,
Since the periphery in the lateral direction was vignetted at the edge of the lens 7b and could not be observed, it was not possible to perform positioning and bonding.
【００２１】本実施例では、横方向の中心位置に指標６
ａ、６ｂが配置されているので、位置出しを行うとき
は、凸レンズ７ｂ越しに指標６ａ、６ｂを結んだ線の有
効画素領域３に含まれる長さを測定顕微鏡で測定し、そ
の中心を求めることで有効画素領域３の中心を求めてい
る。In this embodiment, the index 6 is located at the center in the horizontal direction.
Since the positions a and 6b are arranged, when positioning is performed, the length included in the effective pixel region 3 of the line connecting the indices 6a and 6b through the convex lens 7b is measured with a measuring microscope, and the center thereof is obtained. Thus, the center of the effective pixel area 3 is obtained.
【００２２】この対物光学系では、従来の撮像素子を用
いると測定顕微鏡で有効画素領域３の横方向の周辺が観
察できないので、有効画素領域３と凸レンズ７ｂの位置
出しが行えなかったが、上記のような指標６ａ、６ｂを
配置することで、凸レンズ７ｂを位置出しして固定でき
るようになり、軸ずれや周辺部のケラレを抑えることが
でき、内視鏡撮像装置の性能向上を図ることができる。
また、指標６ａ、６ｂを低反射率の酸化クロム−クロム
−酸化クロムの層構成で形成したので、指標６ａ、６ｂ
からの反射光を抑えることができ、フレアが発生するこ
ともない。In this objective optical system, when the conventional image pickup device is used, the periphery of the effective pixel region 3 in the horizontal direction cannot be observed with a measuring microscope, so that the effective pixel region 3 and the convex lens 7b cannot be located. By arranging the indices 6a and 6b as described above, the convex lens 7b can be positioned and fixed, the axial deviation and the vignetting of the peripheral portion can be suppressed, and the performance of the endoscope imaging apparatus is improved. Can be.
In addition, since the indices 6a and 6b are formed with a layer structure of chromium oxide-chromium-chromium oxide having low reflectance, the indices 6a and 6b
The reflected light from the light source can be suppressed, and flare does not occur.
【００２３】また、測定顕微鏡の接眼側若しくは観察側
にも撮像素子の指標に対応した指標を設けると、測定を
せずに中心を求めることができる。If an index corresponding to the index of the image sensor is provided on the eyepiece side or the observation side of the measuring microscope, the center can be obtained without performing measurement.
【００２４】また、測定顕微鏡の指標に撮像素子に固定
する部材の位置を示す指標を合わせて配置すると、位置
出しを簡単に行うことができる。When the index indicating the position of the member to be fixed to the image pickup device is aligned with the index of the measuring microscope, the position can be easily determined.
【００２５】また、指標を形成する物質は、他にも有機
物質による着色等で反射率を低くしたものが使用でき
る。In addition, as the substance forming the index, a substance whose reflectance is lowered by coloring with an organic substance or the like can be used.
【００２６】（第４実施例）図６に、第４実施例で使用
した内視鏡用のＣＣＤ枠とＣＣＤの簡略図を示す。図７
に、第４実施例で使用した内視鏡用のＣＣＤとＣＣＤ枠
のレンズ固定部との位置関係の簡略図を示す。本実施例
は、ＣＣＤ１をＣＣＤ枠８に対して位置出しをして固定
するもので、ＣＣＤ枠８には対物レンズを固定するため
のレンズ固定部９が設けられており、レンズ固定部９の
内径中心軸は対物光学系の光軸と一致するようになって
いる。(Fourth Embodiment) FIG. 6 shows a simplified view of a CCD frame and a CCD for an endoscope used in the fourth embodiment. FIG.
Next, a simplified diagram of the positional relationship between the endoscope CCD used in the fourth embodiment and the lens fixing portion of the CCD frame is shown. In this embodiment, the CCD 1 is positioned with respect to the CCD frame 8 and fixed. The CCD frame 8 is provided with a lens fixing portion 9 for fixing an objective lens. The central axis of the inner diameter is adapted to coincide with the optical axis of the objective optical system.
【００２７】従来の撮像素子では、ＣＣＤ枠８のレンズ
固定部９の縁で有効画素領域３横方向の周辺部がケラレ
てしまい、観察、測定することができないので、上方向
に２つの指標１０ａ、１０ｂ、下方向に指標１０ｃを配
置している。指標１０ａ、１０ｂは２点間の中間点が有
効画素領域３上辺の中心になるように有効画素領域３上
辺と水平に配置されており、指標１０ｃは有効画素領域
３下辺の中心に配置されている。位置出しする際には、
指標１０ａ、１０ｂの水平を見ながら位置出しを行い、
ＣＣＤ１とＣＣＤ枠８の回転（ねじれ）方向の調整をし
やすくしている。In the conventional image pickup device, the periphery of the effective pixel region 3 in the lateral direction is vignetted at the edge of the lens fixing portion 9 of the CCD frame 8 and cannot be observed and measured. , 10b, and the index 10c is arranged downward. The indices 10a and 10b are arranged horizontally with the upper side of the effective pixel area 3 such that the midpoint between the two points is the center of the upper side of the effective pixel area 3, and the index 10c is arranged at the center of the lower side of the effective pixel area 3. I have. When positioning,
Positioning is performed while looking at the level of the indicators 10a and 10b,
The rotation (twist) direction of the CCD 1 and the CCD frame 8 can be easily adjusted.
【００２８】本実施例では、測定顕微鏡で有効画素領域
横方向の周辺が観察できないので、従来は、有効画素領
域３とＣＣＤ枠８の位置出しが行えなかったが、上記の
ような指標１０ａ〜１０ｃを配置することで位置出しが
可能になり、内視鏡撮像装置の軸ずれや周辺部のケラレ
を抑えることができ、内視鏡の性能向上を図れる。In this embodiment, since the periphery of the effective pixel area in the lateral direction cannot be observed with the measuring microscope, the positioning of the effective pixel area 3 and the CCD frame 8 could not be conventionally performed. By arranging 10c, positioning can be performed, axis deviation of the endoscope imaging device and vignetting in the peripheral portion can be suppressed, and the performance of the endoscope can be improved.
【００２９】また、撮像素子の前方にゴミ避けの保護用
平行平板を配置するときも同様に、指標を基準として位
置出しして配置することで、その外径を基準に対物レン
ズを配置することができるので、撮像装置の軸ずれ、周
辺のケラレを容易に抑えることができる。Similarly, when a protective parallel plate for avoiding dust is arranged in front of the image pickup device, the objective lens is arranged based on the outside diameter by arranging the parallel plate so as to be positioned with reference to the index. Therefore, it is possible to easily suppress the deviation of the axis of the imaging device and the vignetting around the imaging device.
【００３０】本実施例では、ＣＣＤ１とＣＣＤ枠８の回
転（ねじれ）方向の調整をしやすくするために、指標２
点１０ａ、１０ｂを水平に並べたが、画素領域２に水平
な直線の指標を配置しても同様の効果が得られる。In this embodiment, in order to facilitate adjustment of the rotation (twist) direction of the CCD 1 and the CCD frame 8, the index 2 is used.
Although the points 10a and 10b are arranged horizontally, the same effect can be obtained by arranging a horizontal linear index in the pixel area 2.
【００３１】以上の本発明の撮像素子及び撮像素子を用
いた内視鏡、さらには内視鏡撮像装置組立方法は例えば
次のように構成することができる。The image pickup device and the endoscope using the image pickup device of the present invention, and the method of assembling the endoscope image pickup device can be constructed as follows, for example.
【００３２】〔１〕 画素領域又は実際に画像を形成出
力するのに使用される有効画素領域の位置を示す指標
が、画素領域周辺近傍に配置されていることを特徴とす
る撮像素子。[1] An image pickup device wherein an index indicating the position of a pixel area or an effective pixel area used for actually forming and outputting an image is arranged near the periphery of the pixel area.
【００３３】〔２〕 画素領域又は実際に画像を形成出
力するのに使用される有効画素領域の中心を示す指標
が、画素領域周辺近傍に配置されていることを特徴とす
る撮像素子。[2] An image pickup device characterized in that an index indicating the center of a pixel area or an effective pixel area used for actually forming and outputting an image is arranged near the periphery of the pixel area.
【００３４】〔３〕 前記指標を２か所以上配置してあ
ることを特徴とする上記１又は２記載の撮像素子。[3] The imaging device according to [1] or [2], wherein the indices are arranged at two or more locations.
【００３５】〔４〕 前記指標が低反射率の材質で形成
されていることを特徴とする上記１から３の何れか１項
記載の撮像素子。[4] The imaging device according to any one of [1] to [3], wherein the index is formed of a material having a low reflectance.
【００３６】〔５〕 上記１から４の何れか１項記載の
撮像素子に対物光学系の光軸と略一致した軸を有する部
材を固定してなることを特徴とする撮像装置。[5] An image pickup apparatus characterized by fixing a member having an axis substantially coincident with the optical axis of the objective optical system to the image pickup element according to any one of [1] to [4].
【００３７】〔６〕 上記１から４の何れか１項記載の
撮像素子に光学部材を固定してなることを特徴とする撮
像装置。[6] An image pickup apparatus characterized in that an optical member is fixed to the image pickup element according to any one of the above items 1 to 4.
【００３８】〔７〕 撮像素子に固定される光学部材に
レンズ作用があることを特徴とする上記６記載の撮像装
置。[7] The imaging apparatus according to [6], wherein the optical member fixed to the imaging element has a lens function.
【００３９】〔８〕 上記１から４の何れか１項記載の
撮像素子、又は、上記５から７の何れか１項記載の撮像
装置を使用したことを特徴とする内視鏡。[8] An endoscope using the imaging device according to any one of the above items 1 to 4 or the imaging device according to any one of the above items 5 to 7.
【００４０】[0040]
〔９〕 撮像素子の撮像領域周辺近傍に配
置された指標と、光学部材又は対物光学系の光軸と略一
致した軸を有する部材との位置関係を求めて、位置出し
固定することを特徴とする内視鏡撮像装置組立方法。[9] The method is characterized in that a positional relationship between an index disposed in the vicinity of the imaging region of the imaging element and a member having an axis substantially coincident with the optical axis of the optical member or the objective optical system is determined, and the position is fixed. Endoscope imaging device assembling method.
【００４１】[0041]
【発明の効果】以上の説明から明らかなように、本発明
においては、撮像素子の画素領域又は実際に画像を形成
出力する有効画素領域の中心位置を示す指標を画素領域
の周辺近傍に設けたので、光学部材との位置出しの精
度、効率を向上させることができ、また、従来の方法で
は撮像装置を大きくしなければ位置出しができなかった
部材との位置出しをすることが可能になる。As is apparent from the above description, in the present invention, an index indicating the center position of the pixel area of the image sensor or the effective pixel area for actually forming and outputting an image is provided near the periphery of the pixel area. Therefore, it is possible to improve the accuracy and efficiency of positioning with the optical member, and it is possible to position with a member that could not be positioned without increasing the size of the imaging device in the conventional method. .
【図１】本発明の第１実施例のＣＣＤの簡略図である。FIG. 1 is a simplified diagram of a CCD according to a first embodiment of the present invention.
【図２】本発明の第２実施例のＣＣＤの簡略図である。FIG. 2 is a simplified diagram of a CCD according to a second embodiment of the present invention.
【図３】本発明の第３実施例に使用したＣＣＤの簡略図
である。FIG. 3 is a simplified diagram of a CCD used in a third embodiment of the present invention.
【図４】第３実施例におけるＣＣＤと内視鏡用対物光学
系のレンズの位置関係を示す簡略図である。FIG. 4 is a simplified diagram showing a positional relationship between a CCD and lenses of an objective optical system for an endoscope in a third embodiment.
【図５】第３実施例の内視鏡用対物光学系の断面図であ
る。FIG. 5 is a sectional view of an endoscope objective optical system according to a third embodiment.
【図６】本発明の第４実施例で使用した内視鏡用のＣＣ
Ｄ枠とＣＣＤの簡略図である。FIG. 6 shows a CC for an endoscope used in a fourth embodiment of the present invention.
It is a simplified diagram of D frame and CCD.
【図７】第４実施例で使用した内視鏡用のＣＣＤとＣＣ
Ｄ枠のレンズ固定部との位置関係の簡略図である。FIG. 7 is a CCD and CC for an endoscope used in the fourth embodiment.
FIG. 4 is a simplified diagram of a positional relationship between a D frame and a lens fixing unit.
【図８】従来技術を説明するための撮像素子と凸レンズ
の位置出しする際の概念図である。FIG. 8 is a conceptual diagram illustrating positioning of an image sensor and a convex lens for explaining a conventional technique.
【図９】従来技術を説明するための撮像素子と鏡枠の位
置出しをする際の概念図である。FIG. 9 is a conceptual diagram illustrating positioning of an image sensor and a lens frame for explaining a conventional technique.
１…ＣＣＤ ２…画素領域 ３…有効画素領域 ４ａ、４ｂ、４ｃ、４ｄ、５ａ、５ｂ、６ａ、６ｂ、１
０ａ、１０ｂ、１０ｃ…指標 ７ａ、７ｂ…内視鏡用対物光学系の凸レンズ ８…ＣＣＤ枠 ９…レンズ固定部 １１…測定顕微鏡対物レンズ １２…凸レンズ １３ａ…観察できる光線 １３ｂ…ケラレて観察できない光線 １４…撮像素子 １５ａ…観察できる光線 １５ｂ…ケラレて観察できない光線 １６…鏡枠 １７…光学部材固定部DESCRIPTION OF SYMBOLS 1 ... CCD 2 ... Pixel area 3 ... Effective pixel area 4a, 4b, 4c, 4d, 5a, 5b, 6a, 6b, 1
0a, 10b, 10c ... Index 7a, 7b ... Convex lens of objective optical system for endoscope 8 ... CCD frame 9 ... Lens fixing part 11 ... Measurement microscope objective lens 12 ... Convex lens 13a ... Observable light beam 13b ... Reference numeral 14: Image sensor 15a: Observable light beam 15b: Vignetting and unobservable light beam 16: Lens frame 17: Optical member fixing portion
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｎ 5/335 Ｈ０４Ｎ 5/335 Ｖ // Ｇ０３Ｂ 17/32 Ｇ０３Ｂ 17/32 Ｆターム(参考） 2H040 BA14 CA23 GA03 4C061 AA00 BB00 CC06 DD00 FF40 JJ06 JJ17 NN01 PP01 PP06 PP11 5C022 AA09 AB45 AC42 AC54 5C024 AA01 BA03 CA31 CA33 EA04 FA01 FA11 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H04N 5/335 H04N 5/335 V // G03B 17/32 G03B 17/32 F-term (Reference) 2H040 BA14 CA23 GA03 4C061 AA00 BB00 CC06 DD00 FF40 JJ06 JJ17 NN01 PP01 PP06 PP11 5C022 AA09 AB45 AC42 AC54 5C024 AA01 BA03 CA31 CA33 EA04 FA01 FA11
Claims (3)
のに使用される有効画素領域の位置を示す指標が、画素
領域周辺近傍に配置されていることを特徴とする撮像素
子。1. An image sensor, wherein an index indicating a position of a pixel area or an effective pixel area used for actually forming and outputting an image is arranged near the periphery of the pixel area.
を特徴とする内視鏡。2. An endoscope using the imaging device according to claim 1.
た指標と、光学部材又は対物光学系の光軸と略一致した
軸を有する部材との位置関係を求めて、位置出し固定す
ることを特徴とする内視鏡撮像装置組立方法。3. The method according to claim 1, wherein a positional relationship between an index disposed in the vicinity of an imaging area of the imaging element and a member having an axis substantially coincident with an optical axis of the optical member or the objective optical system is determined, and positioning and fixing are performed. A method for assembling an endoscope imaging apparatus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26381299A JP4190104B2 (en) | 1999-09-17 | 1999-09-17 | Imaging device and endoscope using the imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26381299A JP4190104B2 (en) | 1999-09-17 | 1999-09-17 | Imaging device and endoscope using the imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001086378A true JP2001086378A (en) | 2001-03-30 |
| JP4190104B2 JP4190104B2 (en) | 2008-12-03 |
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ID=17394594
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26381299A Expired - Fee Related JP4190104B2 (en) | 1999-09-17 | 1999-09-17 | Imaging device and endoscope using the imaging device |
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| Country | Link |
|---|---|
| JP (1) | JP4190104B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010046276A (en) * | 2008-08-21 | 2010-03-04 | Fujifilm Corp | Apparatus and method for measuring deviation amount of endoscope image, electronic endoscope, and image processor for endoscope |
| CN108427097A (en) * | 2018-01-26 | 2018-08-21 | 深圳班翟机器人有限公司 | Linear array sensor devices laser positioning method, apparatus, terminal and computer readable storage medium |
-
1999
- 1999-09-17 JP JP26381299A patent/JP4190104B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010046276A (en) * | 2008-08-21 | 2010-03-04 | Fujifilm Corp | Apparatus and method for measuring deviation amount of endoscope image, electronic endoscope, and image processor for endoscope |
| US8313425B2 (en) | 2008-08-21 | 2012-11-20 | Fujifilm Corporation | Apparatus and method for measuring displacement amount of endoscope image, electronic endoscope, and image processing device for endoscope |
| CN108427097A (en) * | 2018-01-26 | 2018-08-21 | 深圳班翟机器人有限公司 | Linear array sensor devices laser positioning method, apparatus, terminal and computer readable storage medium |
| CN108427097B (en) * | 2018-01-26 | 2020-06-16 | 深圳班翟机器人有限公司 | Linear array photosensitive device laser positioning method, device, terminal and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4190104B2 (en) | 2008-12-03 |
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